B7200HST Hydraulic pump seal leak

[marvindmartien]

Hi guys, my father bought a b7200 hst last fall, he likes the tractor but problems are poping out. First his high low range was shifting to low only. I took the trany appart to find out someone had forced the shift (high low) lever and had bent the shift fork. I had the job done in 4 hours by taking the top cover off insted of splitting it, heated the fork with torches and bent it back. The trany shifts fine now,but He has a hydraulic problem. The oil got dumpted in the crankcase. I replaced the front seal on the pump and it ran fine for about 5 hrs then the same happened! I was told not to waist my time and install a new one.
I need some advice, should I replace the pump, install a complete seal kit or just the front seal again. I forgot to mention that the imput shaft has scoring where the seal rides.

Thanks

[marvindmartien]

Does some one know where I can find rebuilt pumps at a good price?